Type-mold



CHARLES R. MURRAY, OF CHICAGO,

BROTHERS & SPINDLER, OF CHICAGO,

ILLINOIS.

iatanted January 5, 1904;

PATENT OFFICE.

ILLINOIS, ASSIGNOR TO BARNHART ILLINOIS, A CORPORATION OF TYPE-MOLD.

"PEGIIFICAIITION forming part of Letters Patent No. 748,876, dated January 5, 1904.

Application tiled October 1, 1902. Serial No. 125,475. (No model.)

- The object of the invention is to lighten large types without interfering with their efficiency and without rendering them liable to break. 7

A further object of the invention is toprovide for the ready and easy manufacture of such types.

In accordance with the manner of carrying out the invention herein set forth I provide a type which has aside groove or indentation or recess. It is preferably so grooved or recessedin both its front and rear faces. In certain casesit is also grooved or recessed at the bottom. A type so constructed is greatly lightened in weight because of the grooves, and at the same time it is amply strong for all purposes and is not weakened nor otherwise rendered liable to break by reason of its construction, nor is the use of spaces, quads,- leads, or slugs prevented or interfered with. Types of this construction can be manufactured by molds suitably provided with enlargements or tongues adapted to form thegrooves or recesses in the type. In the accom panying drawings I have shown two molds of well-known general construction or form,

0 having their molding surfaces or faces provided with projections or enlargementsto form the grooves or recesses in the type, as hereinabove set forth.

In the drawings, Figure 1 is a perspective View of a type embodying my present invention. Fig. 2 is a horizontal section of a perfecting machine-,mold adapted to produce such type. Fig.3 is a vertical section taken on line 3 3 in Fig. 2 without the type. Fig.

4 is a transverse vertical section. Fig. 5 is an end elevation. Fig. 6 is a partial horizon- 8 is a transverse section of the same, taken on line 8 8 in Fig. 7. Fig. 9 is a vertical section taken on line 9 9 in Fig. 7. Fig. 10 is a view showing the two parts of the machine in a separated condition, and Fig. 11 shows said two parts in a transverse section.

Referring first to Fig. 1, the type A is understood to be a large type, such as job or display type or the like. It is shown provided with side grooves or recesses 1 l in its front and rear faces and also with a bottom groove or recess 2. These recesses are shown as extending from side to side of the type, although that is not essential. In some cases the type may be made with only one of the three re cesses shown and in other cases with only two of the same. These recesses are terminated below the top and above the bottom of the type, so as to leave surfaces above and below against which the spaces, quads, leads, and sings can bear. H

In Figs. 2 to 5, inclusive, is shown the mold of a well-known form of a perfecting typecasting machine constructed .so as to cast type with the three recesses 11 and 2 of my improved form of type. This mold com prises a pair of carriages 3 3, jets 4 4, a matrix 5, and a reciprocating plunger 6. The carriages 3 3 and jets 4 4 are supported and held rigidly in position by a mold-block 8 and covered by a top plate 7. The carriages 3 3 are provided with rounded projections or enlargements 9 9, adapted to form the side recesses 1 l of the type, and the jet-plates 4 4 are pro vided with enlargements 10 10, adapted to form the bottom recess thereof. The jetplates 4 4 form an aperture 11, through which the molten metal is forced into the mold. The matrix 5 is understood to be movable in the usual way. The niold is used by forcing the molten metal into the cavity formed by the various parts, as a result of which the type with a jet-piece a is formed, the type being made with recesses in accordance with the shape of the enlargements or projections 9 Qand 1O 10. The plunger 6 is then elevated so as to push the type out, the top plate 7 and Ibo the matrix being previously removed, after which the jet-piece a is broken off in the usual manner.

In Fig. 6 is shown a portion of the mold in a way similar to that of Fig. 2, the apparatus of Fig. 6 being adapted to form the type without the bottom recess 2. In this case thejetplates 4 4 have no interior projections 10 10, as in the case of the first-mentioned apparatus.

In Figs. 7 to 11, inclusive, of the drawings is shown a portion of a well-known form of mold used on hand operated typecasting machines. This machine involves a member B and a member (J, which moves away from and back toward the member B. These two members are provided with the parts to form the type-mold. The member B is provided with a register-plate l3 and a jet-plate 14 and the member C is provided with a registerplate 15 and a jet-plate 16. Between the jetplates 14 and 16 is a space 17 for the introduction of the molten metal. The members B and U areprovided with side projections or body-pieces 19 19 to form the side grooves in the type. The member B carries a block 20 and the member 0 carries a block 22. A matrix 24 is arranged in front of the mold and mounted for movement toward and away from the same. In Fig. 7 the matrix 24 is omitted for convenience of illustration. The mold is operated by arranging it with the members B and C in position against one another, as shown in Fig. 7, and then introducing molten metal into the opening 17.

drawn and the member 0 swung out, thereby releasing the type, which will be formed with the side grooves l 1.

It will be understood that the type herein shown is merely illustrative of my invention. I do not intend to confine myself to the exact number or form of grooves or indentations or channels shown. It will also be understood that the machines herein illustrated for producing type of this character are merely suggestive, as obviously a great variety of other After the metal has hardened the matrix 24 is withforms can be arranged and devised. I do not, therefore, wish to be understood as limiting myself to either the type or the machine herein shown.

In this application I will claim only the apparatus for producing type of the kind herein set forth. I have filed a divisional application, Serial No. 141,642, filed February 3,1903, for the type itself.

What I claim is-- 1. A mold comprising a movable matrix, a pair of jets located opposite the matrix and separated from one another sufficiently to afford a space for a metal-inlet between them, a pair of carriages located between the matrix and said jets, the carriages having their 0pposing edges provided with projections which extend toward one another, a top plate above the carriages and jets, and a mold-block below the same, substantially as described.

2. A mold comprising a movable matrix 5, a pair of jets 4, 4 located opposite the matrix and separated from one another sufficiently to provide a space for a metal-inlet, said jets 4, 4 being provided with projections 1O, 10 adapted to form a projection for making a core in the bottom of the type, carriages 3, 3 located between the matrix 5 and the jets 4, 4 and separated from one another to atford space for the top, said carriages being provided with inwardly-extending projections 9, 9, adapted to form recesses in the front and back of the type, a top plate 7 above the carriages and jets, and a mold-block 8 below the same.

3. In a mold, the combination of a pair of carriages 3, 3; forming the front and back walls of the mold, and provided with projections, jets 4, 4; at the sides of the carriages, a matrix opposite said jets, a top plate, and a mold-block, substantially as described.

In witness whereof I hereunto subscribe my name this 5th day of September, A. D. 1902.

' CHARLES R. MURRAY.

Witnesses:

A. M. BELFIELD, ISABEL 0. LEE. 

